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Diffstat (limited to 'tests/condvar3.c')
-rw-r--r-- | tests/condvar3.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/tests/condvar3.c b/tests/condvar3.c new file mode 100644 index 0000000..97a17cf --- /dev/null +++ b/tests/condvar3.c @@ -0,0 +1,103 @@ +/* + * File: condvar1.c + * + * Test Synopsis: + * - Test basic function of a CV + * + * Test Method (Validation or Falsification): + * - Validation + * + * Requirements Tested: + * - + * + * Features Tested: + * - + * + * Cases Tested: + * - + * + * Description: + * - The primary thread takes the lock before creating any threads. + * The secondary thread blocks on the lock allowing the primary + * thread to enter the cv wait state which releases the lock. + * The secondary thread then takes the lock and signals the waiting + * primary thread. + * + * Environment: + * - + * + * Input: + * - None. + * + * Output: + * - File name, Line number, and failed expression on failure. + * - No output on success. + * + * Assumptions: + * - + * + * Pass Criteria: + * - pthread_cond_timedwait returns 0. + * - Process returns zero exit status. + * + * Fail Criteria: + * - pthread_cond_timedwait returns ETIMEDOUT. + * - Process returns non-zero exit status. + */ + +#include "test.h" + +typedef struct cvthing_t_ cvthing_t; + +struct cvthing_t_ { + pthread_cond_t notbusy; + pthread_mutex_t lock; +}; + +static cvthing_t cvthing; + +static enum { + NUMTHREADS = 2 /* Including the primary thread. */ +}; + +void * +mythread(void * arg) +{ + assert(pthread_mutex_lock(&cvthing.lock) == 0); + + assert(pthread_cond_signal(&cvthing.notbusy) == 0); + + assert(pthread_mutex_unlock(&cvthing.lock) == 0); + + return 0; +} + +int +main() +{ + pthread_t t[NUMTHREADS]; + struct timespec abstime = { 0, 0 }; + struct timeval curtime; + + assert((t[0] = pthread_self()) != NULL); + + assert(pthread_cond_init(&cvthing, NULL) == 0); + + assert(pthread_mutex_init(&cvthing.lock) == 0); + + assert(pthread_mutex_lock(&cvthing.lock) == 0); + + assert(gettimeofday(&curtime, NULL) == 0); + + abstime.tv_sec = curtime.tv_sec + 5; + + assert(pthread_create(&t[1], NULL, mythread, (void *) 1) == 0); + + assert(pthread_cond_timedwait(&cvthing.notbusy, &cvthing.lock, &abstime) == 0); + + assert(pthread_mutex_unlock(&cvthing.lock) == 0); + + assert(pthread_cond_destroy(&cvthing) == 0); + + return 0; +} |